Blount Marine 47.85m Steel Expedition Yacht (1978/2015 Refit) – Golfito, Costa Rica
Golfito, Costa Rica
Watercraft Type:
Motor Yacht
Model
Blount Marine 48m
Build Year
1978
Condition
Fully Operational
Description
Blount Marine 47.85m Full-Displacement Steel Expedition Yacht (1978 / 2015 Refit) – 6 Guest + 6 Crew Cabins – Golfito, Costa Rica
Vessel Overview
Built by Blount Marine in 1978 and comprehensively refitted in 2015 by Merrill-Stevens, this 47.85m full-displacement expedition yacht is engineered for serious long-range cruising and operational resilience. With steel hull and superstructure, heavy displacement, and extraordinary tankage, she is a rare platform for owners prioritising endurance and mechanical transparency over trend-led cosmetics. Flag: United States.
Dimensions, Construction & Explorer Profile
LOA 47.85m • LWL 41.92m • Beam 10.7m • Draft 3.0m • Volume 284 GT • Approx. Displacement 640t.
Steel construction provides exceptional strength for offshore work, while the full-displacement hull optimises stability and fuel efficiency. The beige hull and white superstructure present a purposeful, low-maintenance explorer aesthetic. Three full decks and a flybridge support clear separation between guest, crew, and operational zones.
Engineering, Power & Range
Twin GM 12V149 diesels produce 650 hp each (1,300 hp total) driving twin screws for redundancy and manoeuvrability. Approx. 11 knots maximum and 9 knots economical cruising where consumption and wear are optimised. Fuel capacity is an exceptional approx. 336,900L supporting a stated range up to 12,000 nm at 10 knots—true transoceanic capability. Freshwater capacity is approx. 28,390L for extended autonomy.
Operational Simplicity & Serviceability
The engine room is configured for accessibility and long-term serviceability, reflecting a philosophy of reliability over complexity. The steel hull and displacement form contribute to predictable motion and reduced structural fatigue during prolonged offshore passages.
Guest & Crew Accommodation
Guest accommodation supports up to 12 guests in six cabins, suitable for family cruising, expedition travel, or specialised operational programs. Crew accommodation supports up to 14 personnel across six crew cabins including a separate captain’s cabin—appropriate for long-range operations, continuous watchkeeping, and elevated safety standards.
Interior & Deck Functionality
Interior spaces emphasise durability, logical circulation, and storage for extended living rather than short stays. Exterior deck areas over three levels provide ample capacity for tenders, equipment, and expedition payloads. Steel deck construction offers significant load-bearing capability for additional gear or specialist use.
Regulatory & Ownership Notes
US-flag registration offers clarity on compliance and operational standards. The 2015 refit demonstrates ongoing investment to extend service life and maintain operational relevance while preserving the vessel’s core strengths.
Sales Notes & Next Steps
If your priority is range, tankage, structural integrity, and a platform that can operate far beyond typical cruising circuits, this yacht is a standout. A detailed inspection, machinery survey, and sea trial are strongly recommended to validate readiness and documentation. Contact us for full refit scope, inventories, and to arrange a viewing in Golfito.
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Watercraft Characteristics
Manufacturer : Blount Marine
Model : Blount Marine 48m
Manufactured Year : 1978
No. Cabin : 12
No. Berths : 26
Length (meters) : 47.85
Width (meters) : 10.7
Draft (meters) : 3
Engine: in HP : 2x 650
Engine Type : 2x General Motors 12V149
Max Auth. Capacity: 12
Fuel Tank Capacity: 336900 ltr
Fresh Water Capacity: 336900 ltr
Displacement (at full load): 640000
Max. Speed (Kn) : 11.00 kn
Exterior Style & Concept: Merril-Stevens
Interior_designer: Kirilloff and Associates
Listing Status
Manufactured Country: United States
Condition: Fully Operational
Year of first Registration: 1978
Flag: United States
Tax & Other Contingencies :
Cleared
Cleared
Insurance details
- KaterBlue ensures all boats are insured by their owners, but advise guests to secure Travel Insurance for off-boat incidents. While boat owners cover marine accidents, guests are responsible for their valuables, or entrust to the captain. In case of an accident, captains must inform KaterBlue promptly. Owners are liable for the lack of proper insurance. Guests engaging in water sports do so at their own risk and should have personal insurance.
Location
Starting:
£2,175,000
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Sale price starting
£2,175,000
